100分求助,电气专业英语资料翻译

The previous control methods are feasible only when the fuel cells model is accurate enough and the controllers were developed assuming a perfect knowledge of the operating conditions for the fuel cell system. Plant uncertainties, such as changes in the membrane properties over time or variation in the ambient temperature, can affect the performance of the resulting control system, and, hence, more robust control design techniques should be investigated to guarantee system performance. In addition, most of the mentioned control algorithms are aimed at the PEMFC electrical power control, while the PEMFC temperature control is taken as supplement for power control, not even to consider the coolant circuit control design. Therefore, it is necessary to develop an accurate and simple coolant circuit model, and find suitable control method for dynamic temperature control. Generally, circulating coolant can be applied in removing the excess heat of the PEMFC whose electrical power exceeds 5 kW [23]. In order to efficiently control the PEMFC temperature, a coolant circuit of a PEMFC is modeled based on the physical molar conservation principles and the energy balance theory. However, the performance of the generalized controller largely depends on the availability of an accurate model. As a consequence, the application of conventional control strategies may lead to unacceptable closed loop performances. The controller must be robust to uncertainty in a non-conservative manner and must meet closed loop objectives such as tracking, regulation and disturbance attenuation. Compared with conventional control strategies, fuzzy control is appropriate to use in temperature control applications because it is faster and cheaper to develop and easier to implement. It takes the advantage of the synthesis of the knowledge which is provided by human expertise (in the form of IFeTHEN rules), especially when the process model is unknown [24]. So the incremental fuzzy control with integrator technique is designed according to the established model and control experience rule. The PEMFC temperature and coolant inlet temperature are controlled by regulating the circulating coolant flux and bypass valve factor respectively.

人工翻译,供参考。

The previous control methods are feasible only when the fuel cells model is accurate enough and the controllers were developed assuming a perfect knowledge of the operating conditions for the fuel cell system.
如果拥有足够精确的燃料电池模型,并在完全弄清楚该模型操作条件的情况下开发出控制装置,则前述的控制方法是可行的。
Plant uncertainties, such as changes in the membrane properties over time or variation in the ambient temperature, can affect the performance of the resulting control system, and, hence, more robust control design techniques should be investigated to guarantee system performance.
但是,厂房(工作环境)的不确定性,如随着时间的推移产生的膜变以及环境温度的变化,可能对控制系统的性能造成影响,所以,应研究出更强大的控制设计技术以保证系统的性能和运行。
In addition, most of the mentioned control algorithms are aimed at the PEMFC electrical power control, while the PEMFC temperature control is taken as supplement for power control, not even to consider the coolant circuit control design.
此外,前面提到的大多数控制技术仅着眼于质子交换膜燃料电池的电动控制,而质子交换膜燃料电池的温度控制仅是电动控制的一个方面,它甚至没有考虑冷却液的回路控制设计。
Therefore, it is necessary to develop an accurate and simple coolant circuit model, and find suitable control method for dynamic temperature control.
因此,开发一个简单和准确的冷却液回路模型,并找到动态温度控制方法是十分必要的。
Generally, circulating coolant can be applied in removing the excess heat of the PEMFC whose electrical power exceeds 5 kW.
通常,冷却液的循环流动可带走质子交换膜燃料电池产生的、电功率超过5千瓦的余热。
In order to efficiently control the PEMFC temperature, a coolant circuit of a PEMFC is modeled based on the physical molar conservation principles and the energy balance theory.
为了有效控制质子交换膜燃料电池的温度,质子交换膜燃料电池的冷却回路模型采用物质质量守恒定理和能量交换原理而进行设计。
However, the performance of the generalized controller largely depends on the availability of an accurate model.
然而,广义控制装置的性能在很大程度上取决于一个准确模型的建立。
As a consequence, the application of conventional control strategies may lead to unacceptable closed loop performances.
而采用常规控制技术则可能会导致一种无法预料的结果,即回路关闭。
The controller must be robust to uncertainty in a non-conservative manner and must meet closed loop objectives such as tracking, regulation and disturbance attenuation.
若采用非常规方式来消除不确定性,控制装置的功能就必须足够强大以应对回路的关闭,如必须具有跟踪、 调节和衰减控制等功能。
Compared with conventional control strategies, fuzzy control is appropriate to use in temperature control applications because it is faster and cheaper to develop and easier to implement.
与常规控制技术相比,由于开发时间短、成本低且容易实现,模糊控制技术在温度控制方面的应用非常广泛。
It takes the advantage of the synthesis of the knowledge which is provided by human expertise (in the form of IFeTHEN rules), especially when the process model is unknown.
该技术采用专家综合分析系统(运用IFeTHEN推定法则),特别是当过程模型未知时应用该技术效果会更理想。
So the incremental fuzzy control with integrator technique is designed according to the established model and control experience rule.
鉴于此,通过建立控制法则和经验模型,研发设计出了增量模糊控制与集成技术。
The PEMFC temperature and coolant inlet temperature are controlled by regulating the circulating coolant flux and bypass valve factor respectively.
这样,对质子交换膜燃料电池温度和冷却液入口温度的控制,分别通过对回路中冷却液流量和分流系数的调节而得以实现。
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第1个回答  2011-11-17
以前的控制方法是切实可行的,只有当足够燃料电池模型有较高的准确性和控制器是发展一个完美的知识假设操作条件的燃料电池系统。植物的不确定性,如膜性能的变化随着时间的过去或变异,环境温度,并对影响其性能的产生的控制系统,因此,具有更强的鲁棒性控制设计应保证技术进行了系统的性能。另外,大多数啊!
第2个回答  2011-12-02
只有当燃电池模型很准确的,而且控制器被发展时,以前的控制方法是可行的假定对营业上的条件完美了解作为燃电池系统。设置不定因素,像是方面的改变薄膜特性加班或者周围温度的变化,能感染产生控制系统的性能,和,因此,比较强健的控制设计技巧应该被侦查保证系统性能。此外,大部份的提到控制运算法则针对 PEMFC 电力控制,当 PEMFC 温差温度控制为电力控制被量如补充的时候,不甚至视冷却剂为电路控制设计。因此,开发准确、普通冷却剂电路模型,而且找合适的控制方法作为动态的温差温度控制是必须的。通常,流通冷却剂能在移除电力超过 5个千瓦[23] 的 PEMFC 的过量热方面被应用。妥善有效率地控制 PEMFC 温度, PEMFC 的一个冷却剂电路被做模型基于物性的磨碎保存原理和能量代谢理论。然而,泛发性控制器的性能主要地取决于准确模型的有效。当做一个结果,传统控制战略的应用程序可能引导不能接受的闭合回路性能。控制器对一个非保守派人士的方式中的不可信度一定是强健的而且一定符合闭合回路目标,像是车辙、规则和扰动衰减。与传统的控制战略相较,微毛控制是适于在温差温度控制应用中使用因为开发更快速、更廉宜而且疲软履行。它采取由人的专门知识 (以 IFeTHEN 的形式保持在芋一水平)提供的知识的合成的优点,尤其当方法模型是未知的[24] 。因此增加的微毛控制用积分器技巧依照建立的模型被设计和控制经验保持在芋一水平。PEMFC 温度和冷却剂入口温度藉由管理流通的冷却剂磁束被控制和旁通阀分别地的传递因数。
第3个回答  2011-11-17
以前的控制方法是可行的,只有当燃料电池模型是不够准确和控制器是假设完美知识的操作条件的燃料电池系统。植物的不确定性,如改变膜的性能随着时间变化的环境温度,可能会影响性能的控制系统,和,因此,更多的鲁棒控制设计技术应进行调查,保证系统的性能。此外,大多数上述控制算法是针对质子交换膜燃料电池电功率控制,而质子交换膜燃料电池温度控制是作为补充电源控制,甚至不考虑冷却剂控制电路设计。因此,有必要发展一个准确和简单的电路模型,并找到合适的控制方法动态温度控制。一般来说,循环冷却液可用于去除多余的热量的质子交换膜燃料电池的电功率超过5千瓦的[ 23]。为了有效地控制电池温度,冷却回路是质子交换膜燃料电池的模型基础上的物理摩尔守恒原理和能量平衡理论。然而,广义控制器的性能很大程度上取决于是否有一个精确的模型。因此,使用传统的控制策略可能导致不可接受的闭环性能。该控制器必须是强有力的不确定性在一个保守的方式,必须满足闭环等目标,跟踪,管理和干扰衰减。与传统的控制策略,模糊控制是适当的使用温度控制应用,因为它速度更快和更便宜的开发更容易实现。利用合成的知识,提供的专业知识(形式的ifethen规则),尤其是当过程模型是未知的,[ 24]。因此,增量式模糊控制与集成技术的设计,根据所建立的模型和控制经验法则。电池温度和冷却液入口温度控制调节循环冷却剂流量,旁通阀因子分别为。
第4个回答  2011-11-22
先前的那种控制方法只有在有

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